Install NixOS on Online.Net - Revision history

imported>Nix: add Server category

2021-09-20T04:59:40Z

add Server category

← Older revision		Revision as of 04:59, 20 September 2021
Line 188:		Line 188:

	See [https://github.com/NixOS/nixpkgs/commit/6ebe4a6a523bbab3388453ac119ab08e295a7e06 this commit] for the fix.		See [https://github.com/NixOS/nixpkgs/commit/6ebe4a6a523bbab3388453ac119ab08e295a7e06 this commit] for the fix.

			[[Category:Server]]

imported>Armael at 10:30, 22 March 2018

2018-03-22T10:30:02Z

← Older revision		Revision as of 10:30, 22 March 2018
Line 135:		Line 135:
	};		};

			# Not strictly required, but useful to be able to use the serial console
			boot.kernelParams = [ "console=ttyS1" ];

	networking.hostName = "yourhostname";		networking.hostName = "yourhostname";
	networking.interfaces.eth0 = { ipAddress = "your ip address"; prefixLength = 24; };		networking.interfaces.eth0 = { ipAddress = "your ip address"; prefixLength = 24; };
	networking.defaultGateway = "your gateway";		networking.defaultGateway = "your gateway";
	networking.nameservers = [ "62.210.16.6" "62.210.16.7" ];		networking.nameservers = [ "62.210.16.6" "62.210.16.7" ];

			# By default, systemd "predictable interface names" are used for network interfaces.
			# Since the Dedibox SC only has one network interface, it is safe to disable this,
			# and simply use eth0 as above.
			# If you remove this line, you need to replace "eth0" above by the correct interface name.
			networking.usePredictableInterfaceNames = false;

	i18n.defaultLocale = "en_US.UTF-8";		i18n.defaultLocale = "en_US.UTF-8";

imported>Samae at 20:39, 17 January 2018

2018-01-17T20:39:18Z

← Older revision		Revision as of 20:39, 17 January 2018
Line 92:		Line 92:
	. /root/.nix-profile/etc/profile.d/nix.sh		. /root/.nix-profile/etc/profile.d/nix.sh
	nix-channel --remove nixpkgs		nix-channel --remove nixpkgs
	nix-channel --add http://nixos.org/channels/nixos-17.10 nixos		nix-channel --add http://nixos.org/channels/nixos-17.09 nixos
	nix-channel --update		nix-channel --update

imported>Samae: /* Get nix onto the rescue system */

2018-01-17T20:31:58Z

Get nix onto the rescue system

← Older revision		Revision as of 20:31, 17 January 2018
Line 92:		Line 92:
	. /root/.nix-profile/etc/profile.d/nix.sh		. /root/.nix-profile/etc/profile.d/nix.sh
	nix-channel --remove nixpkgs		nix-channel --remove nixpkgs
	nix-channel --add http://nixos.org/channels/nixos-14.04 nixos		nix-channel --add http://nixos.org/channels/nixos-17.10 nixos
	nix-channel --update		nix-channel --update

imported>Samae: Add big missing pieces

2018-01-17T20:31:31Z

Add big missing pieces

@@ Line 7: / Line 7: @@
 ==Preparation==
-===Be root===
+=== Be root===
 No reason not to be:
@@ Line 14: / Line 14: @@
 cd
 </syntaxhighlight>
 ===Change the UI language===

imported>Fadenb: Syntax highlighting

2017-08-26T19:52:23Z

Syntax highlighting

← Older revision		Revision as of 19:52, 26 August 2017
Line 10:		Line 10:

	No reason not to be:		No reason not to be:
	<~~pre~~>		<syntaxhighlight lang="bash">
	sudo su		sudo su
	cd		cd
	</~~pre~~>		</syntaxhighlight>

	===Change the UI language===		===Change the UI language===
Line 19:		Line 19:
	All the Online.net images are set to French by default, which I don't want:		All the Online.net images are set to French by default, which I don't want:

	<~~pre~~>		<syntaxhighlight lang="bash">
	export LANG=POSIX		export LANG=POSIX
	export LC_ALL=POSIX		export LC_ALL=POSIX
	</~~pre~~>		</syntaxhighlight>

	===Check your partitions===		===Check your partitions===
Line 28:		Line 28:
	Now, make sure your partitions are where you expect them, on /dev/sda.		Now, make sure your partitions are where you expect them, on /dev/sda.

	<~~pre~~>		<syntaxhighlight lang="bash">
	fdisk -l /dev/sda		fdisk -l /dev/sda
	</~~pre~~>		</syntaxhighlight>

	Here's what mine look like on a Dedibox XC:		Here's what mine look like on a Dedibox XC:

	<~~pre~~>		<syntaxhighlight lang="bash">
	/dev/sda1 * 2048 391167 194560 83 Linux		/dev/sda1 * 2048 391167 194560 83 Linux
	/dev/sda2 391168 1949523967 974566400 83 Linux		/dev/sda2 391168 1949523967 974566400 83 Linux
	/dev/sda3 1949523968 1953523711 1999872 82 Linux swap / Solaris		/dev/sda3 1949523968 1953523711 1999872 82 Linux swap / Solaris
	</~~pre~~>		</syntaxhighlight>

	===Format your partitions===		===Format your partitions===
Line 44:		Line 44:
	This will blast away any existing data on your main disk, so make sure you're okay with that.		This will blast away any existing data on your main disk, so make sure you're okay with that.

	<~~pre~~>		<syntaxhighlight lang="bash">
	mkfs.ext2 /dev/sda1		mkfs.ext2 /dev/sda1
	mkfs.ext4 /dev/sda2 -L nixos		mkfs.ext4 /dev/sda2 -L nixos
Line 50:		Line 50:
	swapoff -a		swapoff -a
	mkswap /dev/sda3		mkswap /dev/sda3
	</~~pre~~>		</syntaxhighlight>

	===Mount your freshly minted filesystems===		===Mount your freshly minted filesystems===
Line 56:		Line 56:
	and mount the new ones we made:		and mount the new ones we made:

	<~~pre~~>		<syntaxhighlight lang="bash">
	mount /dev/sda2 /mnt		mount /dev/sda2 /mnt
	mkdir /mnt/boot		mkdir /mnt/boot
	mount /dev/sda1 /mnt/boot		mount /dev/sda1 /mnt/boot
	swapon /dev/sda3		swapon /dev/sda3
	</~~pre~~>		</syntaxhighlight>

	==Nix-flavored stuff==		==Nix-flavored stuff==
Line 69:		Line 69:
	We'll need some nix packages to install nix on the target:		We'll need some nix packages to install nix on the target:

	<~~pre~~>		<syntaxhighlight lang="bash">
	bash <(curl https://nixos.org/nix/install)		bash <(curl https://nixos.org/nix/install)
	. /root/.nix-profile/etc/profile.d/nix.sh		. /root/.nix-profile/etc/profile.d/nix.sh
Line 85:		Line 85:
	export NIXOS_CONFIG=/root/configuration.nix		export NIXOS_CONFIG=/root/configuration.nix
	nix-env -i -A config.system.build.nixos-install -A config.system.build.nixos-option -A config.system.build.nixos-generate-config -f "<nixos>"		nix-env -i -A config.system.build.nixos-install -A config.system.build.nixos-option -A config.system.build.nixos-generate-config -f "<nixos>"
	</~~pre~~>		</syntaxhighlight>

	===Make configuration for your target system===		===Make configuration for your target system===
Line 91:		Line 91:
	Generate a default configuration:		Generate a default configuration:

	<~~pre~~>		<syntaxhighlight lang="bash">
	nixos-generate-config --root /mnt		nixos-generate-config --root /mnt
	</~~pre~~>		</syntaxhighlight>

	This will generate <tt>/mnt/etc/nixos/configuration.nix</tt> and <tt>/mnt/etc/nixos/hardware-configuration.nix</tt>. Eyeball the latter (nano is preinstalled) to make sure the filesystem config looks reasonable and that it's detected your cores correctly. Then customize the former to your liking. By default it'll use DHCP, which didn't seem to work for me on online.net (please tinker and tell me if you got it working with DHCP though), so make sure to customize the network settings if you don't change anything else.		This will generate <tt>/mnt/etc/nixos/configuration.nix</tt> and <tt>/mnt/etc/nixos/hardware-configuration.nix</tt>. Eyeball the latter (nano is preinstalled) to make sure the filesystem config looks reasonable and that it's detected your cores correctly. Then customize the former to your liking. By default it'll use DHCP, which didn't seem to work for me on online.net (please tinker and tell me if you got it working with DHCP though), so make sure to customize the network settings if you don't change anything else.
Line 101:		Line 101:
	Here's a sample config from my box:		Here's a sample config from my box:

	<~~pre~~>		<syntaxhighlight lang="nix">
	{ config, pkgs, ... }:		{ config, pkgs, ... }:

Line 144:		Line 144:
	};		};
	}		}
	</~~pre~~>		</syntaxhighlight>

	===Actually install the system===		===Actually install the system===

	<~~pre~~>		<syntaxhighlight lang="bash">
	unset NIXOS_CONFIG		unset NIXOS_CONFIG
	nixos-install		nixos-install
	</~~pre~~>		</syntaxhighlight>

	That should spend some time downloading and copying stuff around, and then should fail without error. After that, tell the web console to reboot back into normal mode and your machine will be beautifully nixified. Except for the logo stuck on the Online.net console page. Let me know if you figure out how to get rid of that!		That should spend some time downloading and copying stuff around, and then should fail without error. After that, tell the web console to reboot back into normal mode and your machine will be beautifully nixified. Except for the logo stuck on the Online.net console page. Let me know if you figure out how to get rid of that!

imported>Mic92 at 19:53, 22 August 2017

2017-08-22T19:53:32Z

← Older revision		Revision as of 19:53, 22 August 2017
Line 1:		Line 1:
	This page is a slightly modified version of [[Install_NixOS_on_Linode\|the instructions for Linode]], and all real credit goes to the authors of that page. I won't bother explaining as much here, so if something is unclear, please refer back to the original page. I've tested this with the Dedibox SC2 and the Dedibox XC, but see no reason for it not to work with all of their configurations.		I've tested this with the Dedibox SC2 and the Dedibox XC, but see no reason for it not to work with all of their configurations.

	Start by installing a flavor of Linux (don't care which, since we'll be blowing it away) using the standard Online.net control panel. Make sure the partition layout is as you'd like it, because I'm not including instructions below for changing that.		Start by installing a flavor of Linux (don't care which, since we'll be blowing it away) using the standard Online.net control panel. Make sure the partition layout is as you'd like it, because I'm not including instructions below for changing that.

imported>Fadenb: Created page with "This page is a slightly modified version of the instructions for Linode, and all real credit goes to the authors of that page. I won't bother expla..."

2017-06-30T11:22:40Z

Created page with "This page is a slightly modified version of the instructions for Linode, and all real credit goes to the authors of that page. I won't bother expla..."

New page

This page is a slightly modified version of [[Install_NixOS_on_Linode|the instructions for Linode]], and all real credit goes to the authors of that page. I won't bother explaining as much here, so if something is unclear, please refer back to the original page. I've tested this with the Dedibox SC2 and the Dedibox XC, but see no reason for it not to work with all of their configurations.

Start by installing a flavor of Linux (don't care which, since we'll be blowing it away) using the standard Online.net control panel. Make sure the partition layout is as you'd like it, because I'm not including instructions below for changing that.

You don't even need to wait for it to finish booting; click the rescue button on the right and tell it to boot into the ubuntu rescue console. It'll give you a temporary password for the rescue ssh session. Ssh into the rescue image and let's get started!

==Preparation==

===Be root===

No reason not to be:
<pre>
sudo su
cd
</pre>

===Change the UI language===

All the Online.net images are set to French by default, which I don't want:

<pre>
export LANG=POSIX
export LC_ALL=POSIX
</pre>

===Check your partitions===

Now, make sure your partitions are where you expect them, on /dev/sda.

<pre>
fdisk -l /dev/sda
</pre>

Here's what mine look like on a Dedibox XC:

<pre>
/dev/sda1 * 2048 391167 194560 83 Linux
/dev/sda2 391168 1949523967 974566400 83 Linux
/dev/sda3 1949523968 1953523711 1999872 82 Linux swap / Solaris
</pre>

===Format your partitions===

This will blast away any existing data on your main disk, so make sure you're okay with that.

<pre>
mkfs.ext2 /dev/sda1
mkfs.ext4 /dev/sda2 -L nixos

swapoff -a
mkswap /dev/sda3
</pre>

===Mount your freshly minted filesystems===

and mount the new ones we made:

<pre>
mount /dev/sda2 /mnt
mkdir /mnt/boot
mount /dev/sda1 /mnt/boot
swapon /dev/sda3
</pre>

==Nix-flavored stuff==

===Get nix onto the rescue system===

We'll need some nix packages to install nix on the target:

<pre>
bash <(curl https://nixos.org/nix/install)
. /root/.nix-profile/etc/profile.d/nix.sh
nix-channel --remove nixpkgs
nix-channel --add http://nixos.org/channels/nixos-14.04 nixos
nix-channel --update

cat <<EOF > configuration.nix
{ fileSystems."/" = {};
boot.loader.grub.enable = false;
}
EOF

export NIX_PATH=nixpkgs=/root/.nix-defexpr/channels/nixos:nixos=/root/.nix-defexpr/channels/nixos/nixos
export NIXOS_CONFIG=/root/configuration.nix
nix-env -i -A config.system.build.nixos-install -A config.system.build.nixos-option -A config.system.build.nixos-generate-config -f "<nixos>"
</pre>

===Make configuration for your target system===

Generate a default configuration:

<pre>
nixos-generate-config --root /mnt
</pre>

This will generate <tt>/mnt/etc/nixos/configuration.nix</tt> and <tt>/mnt/etc/nixos/hardware-configuration.nix</tt>. Eyeball the latter (nano is preinstalled) to make sure the filesystem config looks reasonable and that it's detected your cores correctly. Then customize the former to your liking. By default it'll use DHCP, which didn't seem to work for me on online.net (please tinker and tell me if you got it working with DHCP though), so make sure to customize the network settings if you don't change anything else.

If you need to figure out your current network settings to fill in the gaps in my settings file, try <tt>cat /etc/resolv.conf</tt> and <tt>cat /etc/network/interfaces</tt>.

Here's a sample config from my box:

<pre>
{ config, pkgs, ... }:

{
imports =
[ # Include the results of the hardware scan.
./hardware-configuration.nix
];

boot.loader.grub = {
enable = true;
version = 2;
device = "/dev/sda";
};

networking.hostName = "yourhostname";
networking.interfaces.eth0 = { ipAddress = "your ip address"; prefixLength = 24; };
networking.defaultGateway = "your gateway";
networking.nameservers = [ "62.210.16.6" "62.210.16.7" ];

i18n.defaultLocale = "en_US.UTF-8";

# environment.systemPackages = with pkgs; [
# wget
# ];

time.timeZone = "America/New_York";

services.openssh.enable = true;

security.sudo.wheelNeedsPassword = false;

users.extraUsers.youruser =
{ createHome = true;
home = "/home/youruser";
description = "your name";
extraGroups = [ "wheel" ];
useDefaultShell = true;
openssh.authorizedKeys.keys = [
"<your pubkey here>"
];
};
}
</pre>

===Actually install the system===

<pre>
unset NIXOS_CONFIG
nixos-install
</pre>

That should spend some time downloading and copying stuff around, and then should fail without error. After that, tell the web console to reboot back into normal mode and your machine will be beautifully nixified. Except for the logo stuck on the Online.net console page. Let me know if you figure out how to get rid of that!

==Troubleshooting==

If <tt>nixos-install</tt> fails to download files from the internet, check that your rescue image's <tt>/etc/resolv.conf</tt>is not a symlink. The issue should be fixed now, but at some point the <tt>nixos-install</tt> chroot process would not copy symlinks appropriately, so things would not resolve in the jail.

See [https://github.com/NixOS/nixpkgs/commit/6ebe4a6a523bbab3388453ac119ab08e295a7e06 this commit] for the fix.